<!DOCTYPE html>
<html>
<head>
    <title>{% block title %}base.html block title 默认标题{% endblock %} - 自强学堂</title>
</head>
<body>
 
{% include 'nav.html' %}
 
{% block content %}
<div>base.html block content 这里是默认内容，所有继承自这个模板的，如果不覆盖就显示这里的默认内容。</div>
{% endblock %}
 
{% include 'bottom.html' %}
 
{% include 'tongji.html' %}
 
</body>
</html>
